bump version in ui/config and datestamp release notes

Author: Dottenpixel

RELEASENOTES.general.md

@@ -1,7 +1,7 @@
 <!-- Release notes authoring guidelines: http://keepachangelog.com/ -->
 <!-- On release, add general notes here. In time the legacy release notes will be add to this -->
 
-## 2.18.0 - Upcoming
+## 2.18.0 - May 6, 2022
 
 - Removed `&_` shorthand from numerous selectors in SCSS files
 - Updated icons to v10.3.0

RELEASENOTES.md

@@ -1,7 +1,7 @@
 <!-- Release notes authoring guidelines: http://keepachangelog.com/ -->
 <!-- !!! THIS FILE IS AUTO-GENERATED !!! DO NOT EDIT THIS FILE MANUALLY !!! -->
 
-## Release 2.18.0 - Upcoming
+## Release 2.18.0 - May 6, 2022
 
 - Removed `&_` shorthand from numerous selectors in SCSS files
 - Updated icons to v10.3.0
@@ -18,10 +18,8 @@
     - Added `video_off`
 
 ## Components
-
 ### [Accordion](https://www.lightningdesignsystem.com/components/accordion)
 #### Fixed
-
 - Fix for sass undefined operation compile error.
 - Fix wrong computed css margin rules.
 

ui/_config.scss

@@ -9,7 +9,7 @@
 ///
 /// @type String
 /// @access private
-$app-version: "2.17.5";
+$app-version: "2.18.0";
 
 /// Debug mode (uncomment to activate)
 /// Turn on to output deprecation warnings during development